TALGATTI, D.; SAR, E.; TORGAN, L. C. Haslea sigma (Naviculaceae, Bacillariophyta) a new sigmoid benthic species from salt marshes of Southern Brazil. Phytotaxa, Auckland, New Zealand, v. 177, n. 4, p. 231–238, 2014. DOI: 10.11646/phytotaxa.177.4.4. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.177.4.4. Acesso em: 6 dec. 2025.